Definition of tunica in English:

tunica

Line breaks: tu¦nica
Pronunciation: /ˈtjuːnɪkə
 
/

noun (plural tunicae /-kiː/)

1 Anatomy A membranous sheath enveloping or lining an organ: [with Latin modifier]: tunica media
More example sentences
  • Arterial calcification most commonly involves the tunica media.
  • Muscle fibers arranged in various striae form the tunica media of veins, for example, in medium-sized vessels.
  • The tumor completely encased the right coronary artery with external compression of the vessel wall without invasion into the tunica media.
2 Botany The outer layer or layers of cells in an apical meristem, which contribute to surface growth.

Origin

late 17th century: from Latin, literally 'tunic'.

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